Welding device used for welding pressure container vertical type circular seam and welding method thereof

Abstract

The invention provides a welding device used for welding a pressure container vertical type circular seam and a welding method thereof. The device comprises a base, a first switch is arranged on the edge of the upper surface of the base, the input en of the first switch is connected with the output end of an outer power source, a sliding base is arranged in a middle sliding groove of the base, and the welding device used for welding the pressure container vertical circular seam is simple in structure; due to vertical type annular seam welding, large devices like a pressure container can be conveniently welded, stability is improved, the sliding base can move, lifting containing of the pressure container can be facilitated, in cooperation with a fixing cover, the pressure container is limited, stability of welding work is ensured, meanwhile, welding precision is improved, the manner of circumferential motion of a welding gun is adopted for welding, running control is simple, the rotating manner of an existing pressure container is abandoned, deviating of a large-size pressure container during rotating is avoided, welding uniformity is ensured, the subsequent repair rate is reduced, and production quality and production efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of pressure vessel welding, in particular to a welding device and a welding method for welding vertical girth seams of pressure vessels. Background technique [0002] In the welding process of the pressure vessel weld, the vertical girth weld of the product head is very important to the pressure vessel. The pressure vessel produced by many pressure vessel manufacturers is bulky and heavy. When welding, the product The girth weld of the head is not allowed to be operated horizontally. At present, in the welding process of this type of vertical girth, enterprises generally use manual welding methods without the help of related auxiliary welding equipment, which not only reduces production efficiency and labor The strength is high, and it is difficult to guarantee the welding quality of the weld seam, many welding defects appear, the number of weld repairs is increased, the welding efficiency is low, and the pr...

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Problems solved by technology

[0002] In the welding process of the pressure vessel weld, the vertical girth weld of the product head is very important to the pressure vessel. The pressure vessel produced by many pressure vessel manufacturers is bulky and heavy. When welding, the product The girth weld of the head is not allowed to be operated horizontally. At present, in the welding process of this type of vertical girth, enterprises generally use manual welding methods without the help of related auxiliary welding equipment, which not only reduces production efficiency and labor The strength is high, and it is difficult to guarantee the welding quality of the weld seam, many welding defects appear, increase the number of weld repairs, the welding efficiency is low, and the production is inconvenient

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